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principal root

The nonnegative square root of a number.

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radicand

The number or expression inside a radical symbol

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index

a number or ratio (a value on a scale of measurement) derived from a series of observed facts

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simplest form

A fraction that has only 1 has a common fractor of the numerator and denominator.

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rationalize the denominator

when an expression is rewritten so that there are no radicals in any denominator and no denominators in any radicals

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like radicals

radicals that have the same radicand

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radical equation

equation that contains radicals with variables in the radicand

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square root equation

y = √(x), y = ±√(x)

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inverse relation

a set of ordered pairs obtained by switching the coordinates in a relation

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inverse functions

When f(g(x)) = x, and g(f(x) = x .

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radical functions

a function which contains a variable as the radicand

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square root functions

f(x)= √x

Constant second differences between x-values for for evenly spaces y-values.

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